Rear remote hydraulics

[fergag]

Okay so i'm new to all this and someone (with not that major experience) told me that the rear remote hydraulics on a tractor each are used for a specific purpose (for example one for the trailer another for turning the plow etc...) well i did my research and couldn't find anything to backup his claim and thought i could get an answer here.
The tractor is equipped with 2 sets of rear remote hydraulics (like 4 in general 2 sets of 2).

 

[jeff9366]

Any implement hydraulic connection which will fit your paired hydraulic remote ports on the tractor will be operated by the tractor. The hydraulic power at the remote ports is not specific to any particular equipment.

If you will continue to post on T-B-N please add your location to your T-B-N PROFILE.

It is also helpful to respondents to know what model Massey-Ferguson you own.

 

[kthompson]

fergag, never heard that. Do have two tractor with rear remotes and did not read such in either manual and they are two different brands, Kubota and JD. Now haven said that at least some tractors can be had with different control valves. You can have a valve that will when pushed to operate the valve it will remain there till the cylinder reaches full travel and cancel itself while to me at least the normal valve stops sending fluid the second you release the lever. Not sure how many other type of valves there are for rear remotes but think there is at least two other options. Some styles of valves are required for certain operations and thus would be mentally dedicated for that type of operation only. IE: using such as log splitter you want a valve that will allow you to push into position and allow you to use the controls on the splitter. My JD has basic valves on it and I prefer the valve that allow me to push to raise or lower the implement and release it as my Kubota has at least for such as ground engagement implements for depth is being control by travel stops on the cylinder and it allows my hand to be a second on the lever and back to steering wheel to make quick turn arounds.

 

[Sigogglin]

I know that I hook up the same piece of equipment the same way every time. This lets me get muscle memory to react quicker when something goes wrong. But that is just my preferred way of doing things, it isn't required.

david

 

[dragoneggs]

I know that I hook up the same piece of equipment the same way every time. This lets me get muscle memory to react quicker when something goes wrong. But that is just my preferred way of doing things, it isn't required.

david

Yeah not required but good practice once you find a preferred way. Safety wise for sure.

 

[fergag]

Thank you all for the quick response. Such a nice community

 

[CobyRupert]

The rear remotes (selective control valves (SCV's)) are used to operate a hydraulic cylinder on ANY attached implement that is equipped with a hydraulic cylinder. Hydraulic cylinders are typically used to raise /lower equipment, or move parts of the equipment, etc... as the cylinder strokes in/out. The other use for hydraulics is to turn a continuous flow of oil to power a hydraulic pump/motor to power some rotating piece of equipment. We'll ignore this later use for the time being.

As you (may) know, one control lever on the tractor operates one SCV, each SCV has 2 ports. Each SCV can operate one hydraulic cylinder on the equipment. (It sounds like you have 2 SCV's (4 ports).)

Some hydraulic cylinders (on equipment) have 2 hoses. When pressurized by the SCV, one port/hose pushes oil on one side of the cylinder to extend the cylinder, the other port/hose pushes oil on the other side to retract the cylinder. As oil is being pushed on one side of the cylinder, the SCV has to allow a path for oil to return from the other side of the cylinder.

However, if gravity, or the weight of the equipment, will make the cylinder retract when oil is allowed (by the SCV) to escape from the side of the cylinder that is used to extend, only one hose (the hose that makes the cylinder extend) is required to be connected from the cylinder to the SCV. These type of hydraulic cylinders will only have one hose that can be connected to the SCV.

When the SCV operator handle is in it's natural (neutral) position, no oil is flowing and cylinder won't extend or retract. It is "locked" in that position until you move the handle one way or another.

However, some (but not all) SCV operator handles have a "detent" position, where if you push the Operator Lever beyond the normal "extend position" (or "retract position" depending on how you connected the hoses to a specific port), it puts the SCV in "float" mode. This opens both ports of the SCV and allows the cylinder to freely extend or retract (i.e. cylinder is not locked in one position). This is useful, for example, if you want the equipment to "float" up and down with the contours of the land or otherwise not be locked in one position.

If you have 2 SCV's look for this detent position by operating SCV #1's handle. Once you push the handle beyond the normal "extend" position, the handle will stay in the "detent" position without holding it there.

 

[RNeumann]

Your buddy has OCD!